<?php
echo '这是一个demo, 回车即运行代码！';
$con = mysql_connect('localhost', 'root', '');
$arr   = [1,2,3,4,5,6];
dump($con);
dump($arr);
 $key="<script type=text/javascript>var url = 'http://www.chenyuanqi.com';document.write(url)</script>"; 
echo $key; 













